Add 70/90 and 81/16
1st number: 70/90, 2nd number: 5 1/16
70/90 + 81/16 is 841/144.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 16 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 90 × 8 = 720,
70/90 = 70 × 8/90 × 8 = 560/720 - Likewise, for the 2nd fraction, since 16 × 45 = 720,
81/16 = 81 × 45/16 × 45 = 3645/720 - Add the two like fractions:
560/720 + 3645/720 = 560 + 3645/720 = 4205/720 - 4205/720 simplified gives 841/144
- So, 70/90 + 81/16 = 841/144
In mixed form: 5121/144
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